One of Naaman's servants hearing this, went in and told it to Naaman, and he to the king of Syria, which is implied. Or, And he went in, & c., i.e. Naaman, mentioned 2 Kings 5:1, hearing this from his wife, told it to the king of Syria, as the next words intimate.
Related Commentaries of 2 Kings 5:4
2 Kings 5:4
4 And one went in, and told his lord, saying, Thus and thus said the maid that is of the land of Israel.